A URI link jump list item.
Note the application must be the registered protocol
handler for the protocol of the link.
Compare this item’s hash to another uri.
Generates a spec hash of the incoming uri and compares
it to this item’s uri spec hash.
Set or get the uri for this link item.
Set or get the title for a link item.
Get a ‘privacy safe’ unique string hash of the uri’s
spec. Useful in tracking removed items using visible
data stores such as prefs. Generates an MD5 hash of
the URI spec using nsICryptoHash.